Timing belt replacement problem

not 100% certain if I'm getting right where ur coming from, but, I'll take a shot-- with tensioner set, revolve engine with socket on front pulley bolt...this will of course thrust up any slack in belt as if engine was actually running..round and round once twice, three time, and back to TDC on compression...see if cams are coming up at correct or very close to correct angles at each compression-stroke TDC. If not, trial and error with resetting your tensioner until you have judged it right and have the angles coming up three pears every comp stroke TDC..

First pull the timing belt tensioner then slip the belt off the cam gears. You then need to find TDC (Top dead center). 3 ways to find TDC 1) There are marks on the crank pulley align them for TDC. 2) Remove timing cover and use crank gear mark seen in link below 3) Put the dip stick in cylinder 1 and turn engine until dip stick stops going up. After finding TDC align cam gear marks seen in link below. Now make sure both cam and crank stay in position and slip timing belt back on (you can move the cam gear to get the belt on but make sure the marks are aligned after the belt is on). Last tighten the belt tensioner, I usually use my finger or an extension to get some more tension on the belt. You might have to remove engine mount bracket makes life much easier as the front cover section is TIGHT !!!. Turn engine a few times to make sure you have compression and engine turns without getting stuck. See link below good luck.

http://bladeagenos21.soup.io/post/374487151/timing-marks-on-mazda-626-1994-diagram

YES! Straighten out the T belt & look for any misfires. If u have any spring loaded pulleys or tensioners, REPLACE THEM. Did U have a misfire before u did the work?

I need some clarification. Did you replace the belt because it broke? If so you may need to replace the head. The problem is if the belt breaks when your moving it usually damages the head and thus needs to be replaced.

you should not change the belt maybe now its not in the same position and that's a big problem

Hi, I have pasted instructions below from autozone.com. The instructions call for the use of special tools. You can improvise with alternate tools, but please make sure your timing is right before closing the cover. Please let me know if you have questions, and thanks for using FixYa.

1.9L Diesel Engine
Some special tools are required to perform this procedure properly. A flat bar, VW tool 2065A is used to secure the camshaft in position. A pin, VW tool 2064 is used to fix the pump position while the timing belt is removed. The camshaft and pump work against spring pressure and will move out of position when the timing belt is removed. It is not difficult to find substitutes but do not remove the timing belt without these tools.

WARNING Do not turn the engine or camshaft with the timing belt removed. The pistons will contact the valves and cause internal engine damage.

1. Disconnect the negative battery cable and remove the accessory drive belts, crankshaft pulley and the timing belt cover(s). Remove the camshaft cover and rubber plug at the back end of the camshaft.
2. Temporarily reinstall the crankshaft pulley bolt and turn the crankshaft to Top Dead Center (TDC) of No. 1 piston. The mark on the camshaft sprocket should be aligned with the mark on the inner timing belt cover or the edge of the cylinder head.
3. With the engine at TDC, insert the bar into the slot at the back of the camshaft. The bar rests on the cylinder head to will hold the camshaft in position.
4. Insert the pin into the injection pump drive sprocket to hold the pump in position.
5. Loosen the locknut on the tensioner pulley and turn the tensioner counterclockwise to relieve the tension on the timing belt. Slide the timing belt from the sprockets.
   
   
   

   Fig. Use the VW tool to lock the camshaft at TDC for timing belt replacement-Volkswagen 1.9L Diesel engines
   
   
   
   

   Fig. Locking the injection pump with the VW tool as shown-Volkswagen 1.9L Diesel engines
   

To install:

1. Install the new timing belt and adjust the tension so the belt can be twisted 45 degrees at the halfway point between the camshaft and pump sprockets. Tighten the tensioner nut to 33 ft. lbs. (45 Nm).
2. Remove the holding tools.
3. Turn the engine 2 full revolutions to return to TDC for the No. 1 cylinder. Recheck belt tension and timing mark alignment, readjust as required.
4. Install the belt cover and accessory drive belts.
   NOTE If the belt is too tight, there will be a growling noise that rises and falls with engine speed.

I have pasted the instructions from autozone.com below, but I never recommend this chore for a novice. If the valve timing is not right, it can ruin your engine. If you have not done this before, I recommend you at least have a mechanic look at the belt before you close up the timing cover.


Removal & Installation

1.7L Engine

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Note the radio security code and the radio presets. Disconnect the negative battery cable.
3. Rotate the crankshaft to set the engine at Top Dead Center (TDC) on the compression stroke for the No. 1 piston. The white mark on the crankshaft pulley should align with the pointers on the timing cover. Once the engine is in this position, it must not be disturbed.
4. Raise and support the vehicle safely. Remove the front tires. Remove the splash shield. Lower the vehicle.
5. Remove the power steering pump and position it to the side without disconnecting the hoses. Remove the alternator.
6. Remove the ignition coil cover. Remove the four ignition coils. Remove the throttle cable clamps and harness holder mounting bolts. Remove the cylinder head cover. Remove the crankshaft pulley.
7. Properly support the engine using a block of wood under the oil pan. Remove the upper bracket.
8. Remove the grommet from the upper cover. Disconnect the camshaft position (CMP) top dead center (TDC) sensor connector.
9. Remove the side engine mount bracket.
10. Remove the crankshaft position (CKP) sensor from the oil pump, without disconnecting the connector.
11. Apply slight force to the timing belt at the midpoint between the camshaft pulley and the water pump pulley and check that the auto tensioner moves smoothly, if not replace it.
12. Move the auto tensioner to remove tension from the timing belt. Remove the timing belt.

To install:

Fig. TDC alignment mark locations for the crankshaft sprocket-1.7L engine

Fig. Timing belt sprocket TDC mark positioning for timing belt installation-1.7L engine

1. Set the crankshaft to TDC. Align the TDC mark on the timing belt drive pulley with the pointer on the oil pump.
2. Set the camshaft to TDC. The UP mark on the camshaft pulley should be at the top. Align the TDC marks on the camshaft pulley with the top edge of the cylinder head.
3. Install the timing belt in a counterclockwise sequence, starting with the drive pulley.
4. As required, replace the auto tensioner assembly.
5. Continue the installation in the reverse order of the removal procedure.
6. Reprogram the ECM/PCM engine idle characteristics. Be sure all electrical items are OFF.
7. Start the engine. Hold the idle speed at 3000 RPM-s in park or neutral until the radiator fan comes on or the temperature reached 194 degrees.
8. Let the engine idle for about five minutes with the throttle fully closed.
9. If the radiator fan comes on during the five minutes, do not count this toward the five minute programming time.
10. Set the clock.

dear friend-if your mark at the bottom is on TDC then that is fine,there is a 8mm hole in the top sprocket.alighn the hole with the mark on the cylinderhead,put belt on and tention turn ones around and lighn up marks.re-assemble.

Get the right timing belt part and tensioner asembly,
It will come withthe instruction manual in the box from NAPA ,,, autozone, etc.
The belt will have white marks that corespond to marks on puleys,
Remove no 1 plug , insert ruber hose turn engine to top point TDC.
Folow instructions on suplied sheet.
Vitally

The cam sprockets should have marks on them (dimples) that should align with marks on the rear timing cover. There should also be a similar dimple on the crankshaft timing sprocket. These will align with their respective marks when the engine is at TDC. The alignment marks are in the following locations as you look at the front of the engine: RH cam sprocket at approximately 11:00, LH cam sprocket at approx 1:00, Crankshaft timing sprocket at approx 4:00 or 5:00. IF you can't find the marks on the cover, put the marks on the sprockets in those approximate positions and set the belt by using a belt tooth count between the marks. Cam to cam should be 40 teeth between the cam marks. Between the LH sprocket and the crank mark should be 43 teeth. You can check TDC by removing your number 1 cylinder spark plug and carefully inserting a long screwdriver and watching the rise/fall as you hand crank the crankshaft into position (which is much easier with the plugs out)